This weekend, the Holy See launched an anti-gay media campaign, in which it pledged to continue its fight against gay marriage. In this photo, Pope Benedict XVI, center, is flanked by the Italian Minister for International Cooperation and Integration Andrea Riccardi, right, as he pays a visit to a group of elderly in Rome on Nov. 12. (AP Photo/Gregorio Borgia) | AP

The Vatican has long maintained a hardline stance against gay marriage, but over the last few days, the Holy See has intensified its anti-gay agitprop, vowing to fight LGBT marriage equality around the world.

According to Reuters, the governing body of the Catholic Church launched an anti-gay media campaign over the weekend, pledging to never stop fighting attempts to "erase the privileged role of heterosexual marriage" -- a union it called "an achievement of civilization."

In a front-page article in Saturday’s Vatican newspaper L’Osservatore Romano, the Holy See sought to frame itself as the lone voice of courage in opposing initiatives to give same-sex couples legal recognition. In a separate Vatican Radio editorial, the pope’s spokesman asked sarcastically why gay marriage proponents don’t now push for legal recognition for polygamous couples as well...

"You could say that the church, on this level, is bound to lose," historian Lucetta Scaraffia wrote for the L’Osservatore Romano. "But this is not the case."

Scaraffia added that the "church's fight on moral issues such as gay marriage and abortion has drawn support and admiration from many non-Catholics," according to the Religion News Service.

Other than reiterating the belief that homosexual acts are "intrinsically disordered" and that the sanctity of marriage between a man and woman must be upheld for the benefit of society, the Vatican also adopted a new line of attack in its fight against gay marriage this weekend.

Father Lombardi isn’t the first person with a head full of faulty logic to trot out the “This slope! It’s just so darn slippery!” argument, of course. Last month, U.S. Rep. Judy Biggert declared, when pressed about same-sex unions on a campaign stop, “You know, we don’t have polygamy and bigamy and all of these things in, in the federal government. It’s the states that take care of that.”

"Will that be a future step? In the future, will we say: ‘These two creatures love each other, and maybe they should be able to be joined in a union’? I think that these things are the next step,” Bernadi said in September. According to News.com.au, Bernadi resigned shortly after making that comment.